Eye-popping hats made for some joyful viewing at this year’s Easter Parade and Bonnet Festival on Fifth Avenue. Many of the creations were decked out in mini-topiaries and butterflies. The most creative ones, however, had that extra dash of whimsy. A dog bed topper, for example, came replete with a toy puppy; other millinery took on musicals, from “Chitty Chitty Bang Bang” to “Thoroughly Modern Millie,” and one parade reveler sported a giant chocolate bunny on his head.